Member of Poseidal's Elite 13 (No. 1). Appears in the third L-Gaim OVA. Sai is actually Leccee's grandfather,

but this doesn't stop him from trying attacking her and Daba when he gets the chance. Defeated by Daba in battle, Sai is released and he later fights Leccee but is prevented from killing her by Daba. Sai decides to retire from the Elite 13 and helps Daba and the others escape after their battle in the Bio-Base Zelda on Gastogal.